artistry vs superior skill

artistry and superior skill both are nouns.

Word	Noun	Adjective	Verb	Adverb
artistry	Yes	No	No	No
superior skill	Yes	No	No	No

As nouns, superior skill is a hypernym of artistry; that is, superior skill is a word with a broader meaning than artistry:

artistry: a superior skill that you can learn by study and practice and observation
superior skill: more than ordinary ability

artistry (noun)	superior skill (noun)
a superior skill that you can learn by study and practice and observation	more than ordinary ability